I've been suffering with cr@ppy performance on mirror's edge with my 4870x2 that couldn't handle the game @ 2560x1600 and barely ran it @ 1920x1200 without any AA or aniso on the previous 8.12 drivers + hotfix. (riva tuner monitoring showed only 50% usage on either core)
However, after updating to 9.1, wow - guess they added a crossfire profile to the driver for mirror's edge as its working beautifully now. Riva tuner monitoring is showing near 100% usage on Both cores and running the game at 60+ fps @ 2560x1600 with 8xqFSAA and 16xAniso.
So if you're wondering whether or not to update, do so.
However, after updating to 9.1, wow - guess they added a crossfire profile to the driver for mirror's edge as its working beautifully now. Riva tuner monitoring is showing near 100% usage on Both cores and running the game at 60+ fps @ 2560x1600 with 8xqFSAA and 16xAniso.
So if you're wondering whether or not to update, do so.